diff --git a/bucket/sbcl.json b/bucket/sbcl.json
index 7c55cb2406..b5d9ac6207 100644
--- a/bucket/sbcl.json
+++ b/bucket/sbcl.json
@@ -1,5 +1,5 @@
 {
-    "version": "2.5.2",
+    "version": "2.5.3",
     "description": "A high performance Common Lisp compiler.",
     "homepage": "https://www.sbcl.org/",
     "license": {
@@ -9,8 +9,8 @@
     "notes": "Please restart your command line for SBCL_HOME to take effect. Please consider installing http://www.quicklisp.org/",
     "architecture": {
         "64bit": {
-            "url": "https://downloads.sourceforge.net/project/sbcl/sbcl/2.5.2/sbcl-2.5.2-x86-64-windows-binary.msi",
-            "hash": "sha1:2b621aabefa21e8e95bab588f851aa40704b3925"
+            "url": "https://downloads.sourceforge.net/project/sbcl/sbcl/2.5.3/sbcl-2.5.3-x86-64-windows-binary.msi",
+            "hash": "sha1:71a9b086c1a69fcf58f98807bacdaae40e4d0360"
         }
     },
     "extract_dir": "PFiles\\Steel Bank Common Lisp",